<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区 -->
      <div class="avater_box">
        <img src="../assets/timg.png" width="130px" height="130px" />
      </div>
      <el-form class="login_form" :model="loginFrom" ref="loginRef" :rules="loginRules">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginFrom.username" prefix-icon="el-icon-s-custom"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginFrom.password" prefix-icon="el-icon-lock" type="password"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button round type="primary" @click="login">登陆</el-button>
          <el-button round type="info" @click="resetLoginForm">取消</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loginFrom: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 20, message: '长度在 3 到 20 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 20, message: '长度在 6 到 20 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  created() {},
  methods: {
    login() {
      this.$refs.loginRef.validate(async valid => {
        if (!valid) return false
        const { data: res } = await this.$http.post('login', this.loginFrom)
        if (res.meta.status !== 200) {
          return this.$message.error('登陆失败')
        }
        this.$message.success('登陆成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    },
    resetLoginForm() {
      this.$refs.loginRef.resetFields()
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-image: url('../assets/lxh.png');
  background-size: 100%;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(30%, -50%);

  .avater_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;

    img {
      widows: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }

  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }

  .btns {
    display: flex;
    justify-content: flex-end;
  }
}
</style>
